Loose-leaf file.



No. 796,445. PATENTED AUG. 8, 1905.

N. NIVERVILLE.

LOOSE LEAF FILE.

APPLICATION rILnn JULY 28.1904.

2 SHEETS-SHEET 1.

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Attorneys No. 796,445. PATENTBD AUG.8,1905.

N. NIVERVILLB.

LOOSE LEAF FILE.

APPLICATION FILED JULY 28,1904. 7

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A n I" Witness es: v fill/1026072 ZZfI/ZZWJZ/lnvento r,

Att o rneys UNITED STATES PATENT OFFICE.

NAPOLEON NIVERVILLE, OF MONTREAL, CANADA, ASSIGNOR OF ONE- HALF TO VICTOR GUERTIN, OF MONTREAL, CANADA.

LOOSE-LEAF FILE.

Specification of Letters Patent.

Patented. Aug. 8, 1905.

Application filed July 28, 1904. Serial No. 218,563.

To all whmn it may concern:

Be it known that I, NAPOLEON NIV'ERVILLE, a subject of the King of Great Britain, residing in the city and district of Montreal, in the Province of Quebec, Canada, have invented certain new and useful Improvements in Loose-Leaf Files; and I do hereby declare that the following is a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to new and useful improvements in securing and clamping devices adapted to be used in connection with looseleaf books, commonly used for ledgers and for similar purposes; and it comprises certain features of novelty in the detail construction and arrangement in the means provided for adjusting the parts thereof, all as hereinafter more fully described, and specifically pointed out in the claims.

The object of the invention is to provide, in a loose-leaf book of the character described, means whereby the clamping-frame used to secure the leaves in position may be adjusted for expansion and contraction, so as to bring a greater or less pressure to bear upon the leaves held therein, and includes specific means for rapidly expanding or contracting the gripping means used in conjunction with the ordinary clamping means, whereby the operation of the device is materially expedited, all as hereinafter more fully described.

Referring to the drawings, in which similar numerals of reference indicate corresponding parts in all the views, Figure l is a perspective view, partly broken away, illustrating the rear edge portion of a book frame equipped with my invention, parts thereof being broken away to better illustrate details of construction. Fig. 2 is a vertical sectional View taken on line 2 2 of Fig. 1 looking in the direction indicated by the arrow. Fig. 3 is a detached detail view, partly broken away, illustrating the ordinary adjusting means hereinafter referred to. Fig. 4 is a View of the opposite edge of the adjusting-frame designed to illustrate the emergency adjusting means. Fig. 5 is adetached fragmentary detail illustrating one corner of the device, and Fig. 6 is a view of the key used in connection with the adjusting means, as hereinafter de- "scribed. Fig. 7 is a detached elevational viewshowing the collapsible frames in closed and open positions as operated by the screwrod hereinafter referred to. Fig. 8 is a similar view showing the position of the parts when the frame is expanded by means of the slidable rod, as hereinafterdescribed.

The permanent leaves 7 and 8 are preferably provided with inner shank portions 7 and 8, which for convenience are formed of wood or other material to which the adjusting-frame may be connected, and these parts 7" and 8 are channeled at 11, as shown in the sectional view, Fig. 2.

Connected with the shank portions 7 a and 8 by means of the flexible neck portions 7 b and 8 are the permanent leaves 7 and 8, and con nected with the shank portions by means of the screws 12 are frame-sections 13 and 14, which are preferably of metal and are provided with the telescoping end plates 15 and 16, respectively.

Secured to the plate 13 by means of the bearings 17 is a screw-threaded shaft 18, upon which is mounted a plurality of screw-threaded yokes 19, by which yokes are pivotally carried the arms 20, which arms extend downwardly and are pivotally connected with the retaining or connecting. plate 21 by means of the pins or pintles 22.

The plate 21 is connected with the rod 23 in any convenient manner, and said rod extends through the channel 11 at the base, so as to extend normally to the end plates 15 and 16 at one end of the frame, thereby serving as a retaining member adapted to connect the plate 14: and arms 20. The rod 23 is provided with a spline 24 and is'slidable in the channel 11, within which it is seated.

When it is desired to slowly or partially separate the frame-sections, the key 25 may be slipped upon the rod 18, so that the slot 26 of such key will interlock with the spline 27 of said rod, whereupon said rod may be rotated by means of the key. The rod 18 be- "lease the leaves of the book. are thus released they may be removed and the rod 23 projected inwardly to the position M the frame-sections will fluence of the screw-threaded shaft 18-and the yokes 19 is necessarily slow, it is frequently desirable to expedite the separation of such parts for various purposes, in which case the rod 23, to which is connected the plate 21, becomes available. In such cases all that is necessary is to slip the key 25 upon the rod 23, turning it slightly, so that the spline 24 will interlock with the seat 25 of the key, whereupon-the rod 23 may be drawn outwardly, as indicated in Fig. 8, and it will be evident that the plates 13 and 14, together with their connected parts, will be quickly separated. When this is done, the rod 23 will extend beyond the'end plates, as shown in Fig. 8.

The quick method of separation of the frame-sections is evidently intended for emergenc ies, wherein it is desired to quickly re- After the leaves shown in Figs. 1 and 7 during which time be again brought together.

Upon the plate 21 is a lug'31, which bears against the upper or inner face of the plate 14, while the rod 23 bears against the lower 7 or outer face of the same plate.

The screw-threaded lugs 19 are provided with offsets 19, which bear against the upper or outer face of the plate 13, as shown in Figs.

2 and 3, so as to relieve strain upon the rod 18 in the operation of the device.

The frame-section comprising the plate 13 and end plates 15 and the frame-section comprising the plate 14, with its end plates, are preferably inclosed in leather or similar flaps "30, located between the posts 9 10 and the arms 20, which, as shown in Fig. 2, are adapted to telescope when the plates 13 and 14 are brought together, thus hiding from view the operative parts therebetween.

In operation rotation of the rod 18 will cause longitudinal movement of the screwthreaded lugs 19 thereupon, whereby if the rod is rotated in a direction to separate the plates 13 and 14 the lug 31 upon said plate 21 will bear against the plate 14, in consequence'of which continued travel of said lugs 19 will cause separation of the plates 13 and 14, and consequent extension of the telescopic posts 9 10. In screwing the rod 18 in the opposite direction the lugs 19 and rod 23 will bear against the outer faces of the plates 13 and 14, thereby causing inward or closing movement of the plates 13 14, and consequent contraction of the telescopic posts 9 10. To look the rod 23 in its innermost or normal position, said rod is provided with a seat terminating in a shoulder 34, while a fiat spring 35 is connected near the outer end of the plate 14, with its free end extending toward said shoulder so as to normally engage therewith, as shown in the detail view, Fig. 5. The plate 13 is provided with a corresponding recess 13, and when the stern of the key 2'5"is placed upon the outer end of the'rod 23 said spring is lifted to release itfrom engagement with the shoulder referred to, after which the rod 23 may be drawn outwardly to separate the plates 13 and 14. When this rod is returned to normal position,itis locked'therein by means of said spring.

While I have shown in theaccompanying drawings the preferred form of my invention, it will be understood that I do not limit myself to the precise form shown, for many of the details may be changed in form or position without affecting the operativeness or utility of my invention, and I therefore reserve the right to make all such modifications as are included within the scope of the following claims or of mechanical equivalents to the structures set forth.

Having described my invention, what I claim, and desire to secure by "Letters Patent,

1. In a device of the character described, a pair of plates,posts connected with said plates, pivoted and approximately parallel connecting members between said plates, and a slidable member with which said pivoted members are connected.

2. In a device of the character described, a pair of plates, a screw-threaded rod journaled on one of said plates, a rod extending substantially parallel with the other of said plates and slidably connected therewith, a retaining member connected with said slidable rod, screw-threaded lugs on said screw-threaded rod, and substantially parallel connecting members extending from said lugs to said retaining member.

3. In a device of the character described, a pair of movable plates, extensible posts connected therewith, a slidable retaining memher on one of said plates, links pivotally connected therewith, and movable lugs on the other plate with which said links are pivotally connected.

4. In a device of the character described, a pair of movable plates, one of which is slotted longitudinally, a slidable retaining member guided in said slotted plate, links connected with said retaining member, a screwthreaded rod rotatably mounted on the other one of said plates, and screw-threaded lugson said rod pivotally connected with said links.

5. In a device of the character described, a

pair of plates, one of which is slotted longituin the slot of said first-mentioned plate, guidelugs thereon and pivoted connecting-arms extending from said slidable member to supporting means carried by said second plate.

In Witness whereof I have hereunto set my hand in the presence of two Witnesses.

NAPOLEON NIVERVILLE.

Witnesses:

S. S. SUGAR, JOHN T. DEUFFERWILL. 

